3:5 But if someone does not know how to manage his own household, how will he care for the church of God?
1 Timothy 3:15
3:15 in case I am delayed, to let you know how people ought to conduct themselves 1 in the household of God, because it is 2 the church of the living God, the support and bulwark of the truth.
1 tnGrk “how it is necessary to behave.”
2 tnGrk “which is” (but the relative clause shows the reason for such conduct).